84333289 has 2 divisors, whose sum is σ = 84333290. Its totient is φ = 84333288.

The previous prime is 84333287. The next prime is 84333331. The reversal of 84333289 is 98233348.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83411689 + 921600 = 9133^2 + 960^2 .

It is a cyclic number.

It is not a de Polignac number, because 84333289 - 2¹ = 84333287 is a prime.

It is a super-2 number, since 2×84333289² = 14224207267115042, which contains 22 as substring.

Together with 84333287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (84333281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42166644 + 42166645.

It is an arithmetic number, because the mean of its divisors is an integer number (42166645).

Almost surely, 2^84333289 is an apocalyptic number.

It is an amenable number.

84333289 is a deficient number, since it is larger than the sum of its proper divisors (1).

84333289 is an equidigital number, since it uses as much as digits as its factorization.

84333289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 40.

The square root of 84333289 is about 9183.3157955065. The cubic root of 84333289 is about 438.5303740314.

The spelling of 84333289 in words is "eighty-four million, three hundred thirty-three thousand, two hundred eighty-nine".